6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Zephyrhills | 1 | 23,541 | 17,353 | 5.55% | 2,395 | 10 | City |
| New Port Richey | 2 | 18,470 | 16,768 | 1.88% | 4,032 | 5 | City |
| Dade City | 3 | 10,267 | 7,239 | 6.26% | 1,353 | 8 | City |
| Port Richey | 4 | 3,775 | 3,084 | 3.79% | 1,700 | 2 | City |
| St. Leo | 5 | 2,466 | 2,493 | -0.24% | 2,021 | 1 | Town |
| San Antonio | 6 | 1,646 | 1,301 | 4.38% | 1,185 | 1 | City |
Zephyrhills is the largest city in Pasco County, with a population of 23,541.
San Antonio is the smallest city in Pasco County, with a population of 1,646.
There are 6 cities in Pasco County, Florida.